1221324030347 has 2 divisors, whose sum is σ = 1221324030348. Its totient is φ = 1221324030346.

The previous prime is 1221324030281. The next prime is 1221324030359. The reversal of 1221324030347 is 7430304231221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1221324030347 - 2¹⁴ = 1221324013963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1821324030347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610662015173 + 610662015174.

It is an arithmetic number, because the mean of its divisors is an integer number (610662015174).

Almost surely, 2^{1221324030347} is an apocalyptic number.

1221324030347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221324030347 is an equidigital number, since it uses as much as digits as its factorization.

1221324030347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 32.

Adding to 1221324030347 its reverse (7430304231221), we get a palindrome (8651628261568).

The spelling of 1221324030347 in words is "one trillion, two hundred twenty-one billion, three hundred twenty-four million, thirty thousand, three hundred forty-seven".